Button-drilling machine



(No Model.) 5- Sheets- Sheet 1.

" J.v WEBB.

BUTTON DRILLING MACHINE.

Patented' lune 26, 1894. on

YH! NATIONAL LI'IHQQRAFMIND ccmnuv.

WABHINGYON, o. c.

(No Model.) 5 Sheets-Sheet 2'.

J. WEBB. V

v BUTTON DRILLING MACHINE. N0f5225036. Patented June 26, 1894.

ms NATIONAL ymosulmma cuMPANY.

(No Model.) 5 SheetsSheet 3.

J. WEBB. I v BUTTON DRILLING MACHINE.

No. 522,036. Patented June 26, 1894.

(No Model.)

5 Sheets-Sheet 4. J. WEBB.

BUTTON DRILLING MACHINE.

' Patented June 26,1894.

(No Model.) 5 Sheets.-Sheet 5.

J. WEBB.

BUTTON DRILLING MAGHINE.

No. 522,036. Patented June 26, 1894.

UNITED STATES PATENT OFFICE.

JOSEPH WEBB, OF DEPOSIT, NEW YORK.

BUTTON-DRILLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 522,036, dated June 26, 1894. Application filed May 6, 1893- fierial No. 473,235. (No model.)

T0 at whom it may concern.- I

Be it known that I, JOSEPH WEBB, a sub ject of the Queen of Great Britain, and a resident of Deposit, in the county of Broome and State of New- York, have invented certain new and useful Improvements in Button-Drilling Machines, of which the following is a specification.

This invention relates to certain new and useful improvements in button drilling machines, and has for its object the production of such a machine, which will .not require skilled labor to manipulate; which will drill simultaneously several buttons, each with a hole in proper relative position, and automatically feed the buttons under each of the drills, until they have been successively pierced with the required number of openings, and then drop or discharge the buttons so drilled in a certain predetermined place.

To these ends, therefore, my invention consists in the details of construction, and in the arrangement and combination of parts, all'as hereinafter more particularly described and pointed out in the claims, reference being had to the accompanying drawings, in which like parts are similarly designated, and in which- Figure 1, is a top plan view. Fig. 2, is a front elevation, showing the drills in their lowered position. Fig. 3, is a'central longitudinal section. Fig. 4, is a bottom plan view of the revolving button-table. Fig. 5, is a verticalsection of one of the button chucks, showing a fragment of the revolving table; and Fig. 6, is a fragmentary plan view of the table, showing the pawl and ratchet beneath the same, for imparting motion thereto, and also showing the cam for the button chucks.

Before entering upon a detailed description of my improved machine, I desire to, state briefly, that said machine comprises a bed .plate, frame, a rotatory button table having chucks for holding and releasing the buttons, mechanism for operating said chucks and mechanism for intermittently rotating the table; a reciprocating drill carriage carrying drills; means for rotating the drills, and means for raising and lowering the carriage, as hereinafter more particularly set forth.

The bed plate 1,is provid ed at one side with the open slot or guide walls 2, (Fig. 6,) terminating forwardly in a circular chamber 3.

sectors by grooves within which are located the radial button chucks; and each sector is provided with the cut, notch or groove 14, on its periphery. v

The button chucks consist of the outer rigid members 15, and the inner movable members 16, carrying the pin 17,-extending into circumferential openings in the hub 11, of the table, and normally retained in closed position byspringslS, coiled about said pins, and located in the channel 12, and between the hub ll'and the circumferential portion 13, of the table. These chucks at their meeting edges are cut-away, beveled and chamfered, as shown at O, in Figs.1 and 5, and afford a seat for the buttons to be drilled, at the same time permitting the drills to pass through the button and the chuck during the drilling operation. The inner movable member 16, of each chuck is provided with the roller 19, (Figs. 4 and 5, and dotted lines Fig. 6,) impinging against the inner side of camstripso, 7 and 8, which, as the table is turned,

successively force said members inwardly' against the tension of their springs and away from the outer rigid member of the chuck,

leaving an opening through which the drilled button drops; and permitting said inner members to assume their normal positions gradually after the cam action has been exerted, as

more fully explained hereinafter.

The under side of the rotary table is provided with the ratchet wheel 20, located within the circular chamber 3, of the bed plate, Y

and passing through the slot 2, in said bed is the link 21, terminating in a spring pawl 22,

engaging the teeth of the ratchet wheel, and

adapted to intermittently rotate the table.

Back of the revolving table and secured to the bed plate 1, are two standards or uprights 23,24, connected at the top by abrace 25, and bearing on their inner faces the grooved or other slides 26, 27, within or upon which travels, in a vertical plane, the drill carriage. This carriage consists of an open frame-work, the upper and lower sides 28, 29, of which are relatively broad strips, and secured to said upper and lower portions, are the upper and lower bearings and 31 for the drill spindles, back of which may be arranged the guards and braces 32. These bearings are preferably adjustable, both laterally and longitudinally, by bolts 33, passing through slots 34 (Fig. 1) in said bearings and into the upper and lower sides of the drill carriage. The drill spindles 35, with their pulleys 36, and drills 37, may be of ordinary construction, and do not require description here. The lower side or strip 29 of the carriage bears a depending lug or finger 3S, and a strong fiat spring 39, secured to the bed plate 1, and terminating in an anti-friction roller 40, bears upon the under side of the carriage, and constantly tends to force said carriage with its attached mechanism upwardly. To a stirrup 1 or extension 23 of the standard 23, is pivoted the rocking-lever 41, the lower end of which is engaged in'a slot 42 in the link 21, and said lever is provided with the tongue or projection 43, engaged with the under side of the lower strip 29, of the drill carriage. A shaft 44, mounted in the standards 23 and 24, carries two cams, 45 and 46, working within the framework of the drill carriage; the cam 45, by its revolution raising and lowering the drill carriage and drills, and the cam 46, imparting an intermittent rotation of the button table, through the lever 41, as presently illustrated.

A T-standard 47, mounted on the rear of the bed plate carries in journals 48, the driv-* ing shaft 49, through the pulley 50 of which, motion is imparted to the machine by means of an appropriate train of reducing gearing; in this case consisting of the pinion 51, on the shaft 49, meshing with the gear wheel 52, mounted on a short shaft journaled to T- standard 47; said shaft also carrying the small sprocket wheel 53 from which the motion is transmittedto the large sprocket wheel 54, mounted on a short shaft 55, secured to the standard 24, by the chain 56; said shaft 55 carrying also the pinion 57, meshing with the gear 58 on the shaft 44, carrying the two cams 45 and 46. j The driving shaft 49, also carries belt pulleys 59, from which the belts run, with a quarter turn twist to the pulleys 36, thereby giving motion to the drills.

The operation of the machine is as follows -The rotary button table has always some of its button clutches 15, 16 open, by the action of the cam-strips 6, 7 8, on the rollers 19, of movable members 16. Through set screws 9,

9, the opening of the clutch into which the buttons to be drilled are fed, (see Z, Fig. 1,) is regulated, so as to be a trifle larger than the button, which is laid in the bevel of the clutches, which as the cam grows less, grips and securely holds the button, through the action of the springs 18. Upon motion being given to the drive shaft 49, it is communicated by the reducing gearing described, to shaft 44, and at 'the same time the drill spindles 35, and drills 37, are given a rapid rotary motion. As the shaft 44 revolves it carries with it the cams 45 and 46, and as cam 45 passes over the lower frame 29, of the-drill carriage, from the point of its greatest eccentricity to its minor axis, the flat spring 39, forces the carriage and its drills upwardly. At the same time, the cam 46 comes in contact with the rocking lever 41, forcing the lower end forwardly, and with it the link 21, thereby, through spring-pawl 22, and ratchet 20, rotating the button table the distance of one tooth. Assuming the buttons to have been fed to the successive clutches at Z, Fig. 1, and the button first fed to have been carried under the first or left hand drill, by the movement just described, the rest of the operation may be described. as follows: The major axis of cam 46 passes lever 41, and the cam 45, coming in contact with the lower frame 29, of the drill carriage, forces said carriage downwardly, and by its pressure on the tongue or projection 43, of said lever 41, it

forces the lower end of said lever backward.

ly, pulling with it the link 21, and spring position back of the next tooth on the ratchet 20. Upon the further descent of the carriage, the depending lug or finger 38 enters the appropriate peripheral opening or notch 14, in the revolving table, holding the same true and steady during the drilling operation, which is begun during the descent of the drill carriage, and as soon as the drill bears upon the button. By the contour of the cam 45, the drill carriage is left in its lowered position a sufficient length of time to drill the hole in the button, when the carriage is raised, the turning table fed forward another notch,bringing the but ton first drilled under drill No. 2, which on ITO the next descent of the carriage, drills the it second hole in said button, the arrangement ployed as maybe desirable or necessary, and

upon leaving the last drill, the roller 19 on the under side of the button chucks comes in contact with the cam strip 6, on the bed plate, which cam forces the inner movable member 16, of said chuck, inwardly against the tension of its spring 18, and leaves an opening, through which the drilled button drops to an appropriate receptacle placed beneath, or to the floor. Upon the further rotation of the turning table, the inner movable members 16, of the chucks, are moved outwardly by their said springs a distance determined by the adjustment of the set screws 9 and 9.

It is obvious that many changes'and alterations may be made in the machine above described and in its several parts, without departing from the principle and scope of my invention. 7 I

What I claim as new, anddesire to secure by Letters Patent, is

1. In button drilling machines, a rotatable table carrying button clutches, each comprising a rigid and a movable member normally held in closed relation by a spring, and a cam: strip adapted to strike against a projection on the-movablemembcr and open the chuck; in combination with reciprocating drills, means for rotating the table and raising and lowering the drills, substantially as described.

2. A machine for drilling buttons, comprising an intermittently rotatable table, a number of button-clutching devices mounted radially upon such table and normally closed to grasp the buttons, means for opening such button-clutching devices to release the buttons when drilled, a gang of drills, a carriage for such drills including an open frame, working in upright guides, a cam arranged in the carriage, a shaft on which the cam'is mounted and means to rotate such shaft, substantially as described.

3. A drill carriage comprising an open frame working in upright guides, and having drill spindles and drills secured thereto; a shaft carrying cams working in the frame of the carriage, one of said cams being adapted to raise and lower said carriage, and the other adapted to intermittently rotate a button table, in combination with a rotatable table, carrying button chucks, and a ratchet; a link carrying a spring pawl and actuated bya rocking lever manipulated by the feeding cam and the frame of the drill carriage; means for revolving the drills, and means for revolving the cam shaft, substantially as described.

4. In a button drilling machine, the combination of a rotatable table, a number of button-clutching devices mounted radially upon such table and normally closed to grasp the buttons, means for opening such buttonclutching devices to release the buttons when drilled, a gang of reciprocating drills,a carriage therefor mounted above said table and including an open frame Working in upright guides, a spring acting upon the carriage normally to hold said drills above the work, a cam arranged in the carriage and adapted to be rotated to lower the'drills against the tension of the spring, means for intermittently rotating the table and means for rotating the drills, substantially as described.

5. A series of button clutches mounted in a rotatable table, said clutches comprising a rigid and a movable member, the latter pro vided with a projection and normally held in closed relation by a spring; an adjustable camstrip adapted to engage said projection, and to successively open the clutches to release the buttons, and to hold said clutches more or less open to permit the introduction of buttons, substantially as described.

6. In a button drilling machine, the combination of a rotatable table having a series of peripheral notches, a number of buttonclutching devices mounted radially upon such table and normally closed to grasp the buttons, means for opening such button-clutching devices to release thebuttons when drilled, a gang of reciprocating drills, a carriage therefor mounted above said table and including an open frame working in upright'guides, and having a projection adapted to engage one or another of the notches in the table and to be freed therefrom, a spring acting upon the carriage normally to hold said drills above the work, a cam arranged in the carriage, and adaptedto be rotated tolowerthe drills against the tension of the spring, means for intermittently rotating the table and means for rotating the drills, substantially as described.

7. In a button drilling machine, the combination of a rotatable table, a number of button-clutching devices mounted radially upon such table and normallyclosed to grasp the buttons, means for opening such button clutching devices to release the buttons when drilled, a gang of independently rotatable drills, set in different relative positions to an equal number of subj acent buttons and adapted to be brought into contact with the but tons to drill each with a hole in the proper relative position to the other holes drilled and to be drilled, a carriage in which said drills are mounted comprising an open frame working in upright guides, a spring acting upon the carriage normally to elevate it and the drills and a rotary cam adapted to act upon' thecarriage and lower it against the stress of the spring, substantially as described. Signed at New York, in the county of New York and State of New York, this 1st day of May, A. D. 1893. JOSEPH WEBB.

Witnesses:

FREDERIC CARRAGAN,

EUGENE V. MYERS. 

